10 Most Powerful Women in IT - #10

After having been president and CEO of Marimba, this Silicon Valley star took over the reins for this Kleiner-Perkins funded open-source business applications vendor in Sept. 2004.

"[Customers'] IT staff are consumed by scouring for patches and features and downloading those and then incorporating them into an integrated installation process. That takes an enormous amount of time, and that's the problem we are setting up to solve for these companies, offloading that task for them."-Polese to eWEEK.

Here is our list of the 10 most powerful women in the IT industry. Plus one who is no longer with us, but whose absence would disqualify any list that omitted her.